Civil Construction, Building Materials & Trades Calculators

Concrete, materials, estimating, layout and trade maths.

69 tools · 100% Free · Works Offline

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Concrete Slab Volume CalculatorCalculate concrete slab volume in cubic metres from length, width and thickness for pour and…

Roof Pitch CalculatorCalculates roof pitch, angle and rafter length from rise and run.

Paint Quantity CalculatorEstimates paint quantity needed from wall area, coats and coverage rate.

Flooring CalculatorCalculates flooring area and packs of laminate, vinyl or tiles needed for a room including…

All Civil Construction, Building Materials & Trades Calculators (69)

Guide to Civil Construction Calculators

This hub covers the everyday sums that decide how much to order and how to set things out on a building or civil job: concrete and reinforcement, bulk landscaping supplies, framing and roofing takeoffs, pavement design and earthworks. It's used by builders, landscapers, concreters, chippies and civil crews pricing work or ordering materials.

Concrete, footings and reinforcement

Work out the volume first (slab, footing, column, post hole or screed), then convert to bags or ready-mix loads and size the steel with the rebar and mesh tools.

Concrete Slab Volume Calculator Footing Concrete Calculator Concrete Column Volume Calculator Post Hole Concrete Calculator Concrete Bags Calculator Concrete Delivery Load Calculator Slab Rebar Calculator Reinforcement Mesh Count Calculator

Bulk landscaping and fill supplies

Use these when the supplier sells by the cubic metre, cubic yard or tonne; pick the material-specific tool so the right bulk density is applied to loose fill.

Gravel Calculator Topsoil Calculator Mulch Calculator Sand Calculator Road Base Calculator Cubic Yards Calculator Asphalt Tonnes Calculator

Walls, framing and openings

For brick and block work start with coursing to set the datum, then count units, studs and sheets; use rough opening for door and window framing.

Brick Wall Calculator Brick & Block Coursing Calculator Wall Framing Stud Calculator Plasterboard Sheets Calculator Window & Door Rough Opening Calculator Mortar Bags Calculator Core Fill Concrete Calculator

Floors, roofs and finishes

Estimate finished surfaces by coverage: flooring and tiles by area, roofing by pitch and sheet size, and paint by wall area with a coat allowance.

Flooring Calculator Carpet Calculator Tile Calculator Roof Area Calculator Roof Pitch Calculator Roof Sheet Calculator Paint Quantity Calculator

Earthworks, roads and pavement design

Balance cut and fill and allow for bulking on the dirt side; on the design side size flexible or rigid pavement from CBR, traffic loading and subgrade strength.

Cut-to-Fill Balance Calculator Fill Bulking (Swell & Shrinkage) Calculator Spoil Haulage Calculator CBR-Based Pavement Thickness Calculator AASHTO Flexible Pavement Thickness Calculator ESAL Traffic Loading Calculator Subgrade Modulus Calculator

Important calculation notice

These calculators are intended for education, estimation and preliminary checks. Verify all inputs, units, assumptions, material properties and applicable standards. Safety-critical or final engineering designs should be checked by a suitably qualified professional.

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Civil Construction, Building Materials & Trades Calculators

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Popular Calculators

All Civil Construction, Building Materials & Trades Calculators (69)

Estimating & Materials39 calculators

Roads, Earthworks & Drainage18 calculators

Concrete & Reinforcement6 calculators

Layout, Framing & Finishing6 calculators

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